Dice Error Unknown

Problem joining friends in a squad in RedSec mode — error DICEONLINEERROR_UNKNOWN [225005S] P:82554 [1068]

Description of the issue:
I’m experiencing a recurring error in Battlefield 6 when trying to play with my friends in RedSec mode. Whenever I join their squad, a lock icon appears that prevents us from searching for a match. The problem only happens to me — when my friends create a squad without me, the lock icon does not appear, and they can search for matches normally.

The only way I can play with them is if they start searching for a match first and, during the process, quickly invite me to the squad. That way, I can join the same platoon. However, even then, we can only organize the match at most twice before the following error appears:

DICEONLINEERROR_UNKNOWN [225005S] P:82554 [1068]

Platform PS5